Accu-Chek Aviva Manuel De L'utilisateur page 51

If your control result is not inside the acceptable range, here are some things you can do to solve the problem:
Troubleshooting Checks
1. Check the expiry date of the test strips and
control solution.
2. Check that you wiped the tip of the control solution bottle
before and after use.
3. Ensure that the caps on the test strip container and the
control solution bottle are always closed tightly.
4. Check if the test strip was out of the container for a long
time.
5. Check that your test strips and control solutions were
stored in a cool, dry place.
6. Check that you followed the testing steps.
7. Check that you chose the correct control solution level,
either 1 or 2, when you performed the test.
8. Check that the code number on the meter display
matches the code number on the test strip container.
9. If you are still unsure of the problem...
Chapter 4
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Action
If either is past the expiry date, discard it. If the control solu-
tion was opened more than three months ago, discard it.
Wipe the tip of the bottle with a tissue. Repeat the control
test with a new test strip and a fresh drop of control solution.
If you think either may have been uncapped for some time,
replace the test strips or control solution.
Repeat the control test with a new test strip.
Repeat the control test with properly stored test strips or
control solution.
Read Chapter 4 "Control Testing" and test again. If you still
have problems, call Accu-Chek Customer Care.
If you chose the wrong control solution level, you can still
compare the control result to the range printed on the test
strip container.
If they do not match, insert the correct code chip in the
meter and test again.
Repeat the control test with a new test strip. If you still
have problems, call Accu-Chek Customer Care.